In Δ ABC, the lengths of sides AC and AB are 12 cm and 5 cm, respectively. If the area of Δ ABC is 30 cm² and R and r are respectively the radii of circumcircle and incircle of Δ ABC, then the value of 2R + r (in cm) is equal to _ _ _ _ _ _.

Properties of Triangle: JEE Main 2021 Mathematics question

JEE Main 2021 · 16 Mar, Evening shift · Q48

JEE Main 202116 Mar, Evening shiftMathematicsMediumProperties of Triangle19× since 2002

\Delta

ABC, the lengths of sides AC and AB are 12 cm and 5 cm, respectively. If the area of

\Delta

ABC is 30 cm² and R and r are respectively the radii of circumcircle and incircle of

\Delta

ABC, then the value of 2R + r (in cm) is equal to ___________.

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2021 Properties of Triangle Question with Answer (16 Mar Evening shift, Q48) | JEE Arc